Radiographic Landmarks

Question 1

Black arrow

Answer 1

Nasal septum

Question 2

Answer 2

Incisive Foramen

Question 3

1?

4?

6?

7?

9?

10?

11?14?15?17?19? Coronoid notch/sigmoid notch?

Answer 3

1. mastoid process. 4.styloid process 6. sephnoid bone 7.condyle 9.coronoid process 10. maxillary tuberosity 11. zygomatic arch 14.orbit 15. maxillary sinus 17. inferior nasal conchae 19. oblique ridge Coronoid notch is between 7 and 9!

Question 4

Answer 4

External oblique ridge/line

Question 5

9?

11?

14?

15?

20?

21?

Answer 5

9. coronoid process
10. zygomatic arch
11. Orbit
12. Maxillary Sinus
13. Mandibular Canal
14. Mental Foramen

Question 6

Answer 6

anterior nasal spine

Question 7

Answer 7

Intermaxillary suture;median palatal suture

Question 8

Answer 8

Lingual Foramen

Question 9

Answer 9

Mental Foramen

Question 10

white arrows? Image B is post extraction

Answer 10

Floor of maxillary sinus ( B - Pneumatization of maxillary sinus)

Question 11

Answer 11

Inferior Alveolar Canal; mandibular canal

Question 12

Answer 12

Inferior Nasal turbinate/conchae

Question 13

Answer 13

Nasopalatine duct; incisive canal

Question 14

Answer 14

Coronoid process

Question 15

Answer 15

Internal oblique ridge/line; mylohyoid line

Question 16

Answer 16

Maxillary tuberosity

Question 17

Answer 17

Zygomatic process of maxilla

Question 18

Answer 18

Hamulus

Question 19

Answer 19

Pterygoid plates

Question 20

Answer 20

Genial Tubercles

Question 21

Answer 21

Junction of nasal fossa and maxillary sinus

Question 22

Where are medial and lateral pterygoid plates?

Answer 22

Posterior to the tuberosity of the maxilla (exact location extremely variable)

Question 23

What are the 3 processes of the zyogomatic arch?

Answer 23

zygomatic process of maxilla

zygomatic process of frontal bone

zygomatic process of temporal bone